drivers/net/bfin_mac.h

   1 /*
   2  * Blackfin On-Chip MAC Driver
   3  *
   4  * Copyright 2004-2007 Analog Devices Inc.
   5  *
   6  * Enter bugs at http://blackfin.uclinux.org/
   7  *
   8  * Licensed under the GPL-2 or later.
   9  */
  10 #ifndef _BFIN_MAC_H_
  11 #define _BFIN_MAC_H_
  12
  13 #include <linux/net_tstamp.h>
  14 #include <linux/clocksource.h>
  15 #include <linux/timecompare.h>
  16 #include <linux/timer.h>
  17 #include <linux/etherdevice.h>
  18 #include <linux/bfin_mac.h>
  19
  20 #define BFIN_MAC_CSUM_OFFLOAD
  21
  22 #define TX_RECLAIM_JIFFIES (HZ / 5)
  23
  24 struct dma_descriptor {
  25         struct dma_descriptor *next_dma_desc;
  26         unsigned long start_addr;
  27         unsigned short config;
  28         unsigned short x_count;
  29 };
  30
  31 struct status_area_rx {
  32 #if defined(BFIN_MAC_CSUM_OFFLOAD)
  33         unsigned short ip_hdr_csum;     /* ip header checksum */
  34         /* ip payload(udp or tcp or others) checksum */
  35         unsigned short ip_payload_csum;
  36 #endif
  37         unsigned long status_word;      /* the frame status word */
  38 };
  39
  40 struct status_area_tx {
  41         unsigned long status_word;      /* the frame status word */
  42 };
  43
  44 /* use two descriptors for a packet */
  45 struct net_dma_desc_rx {
  46         struct net_dma_desc_rx *next;
  47         struct sk_buff *skb;
  48         struct dma_descriptor desc_a;
  49         struct dma_descriptor desc_b;
  50         struct status_area_rx status;
  51 };
  52
  53 /* use two descriptors for a packet */
  54 struct net_dma_desc_tx {
  55         struct net_dma_desc_tx *next;
  56         struct sk_buff *skb;
  57         struct dma_descriptor desc_a;
  58         struct dma_descriptor desc_b;
  59         unsigned char packet[1560];
  60         struct status_area_tx status;
  61 };
  62
  63 struct bfin_mac_local {
  64         /*
  65          * these are things that the kernel wants me to keep, so users
  66          * can find out semi-useless statistics of how well the card is
  67          * performing
  68          */
  69         struct net_device_stats stats;
  70
  71         unsigned char Mac[6];   /* MAC address of the board */
  72         spinlock_t lock;
  73
  74         int wol;                /* Wake On Lan */
  75         int irq_wake_requested;
  76         struct timer_list tx_reclaim_timer;
  77         struct net_device *ndev;
  78
  79         /* MII and PHY stuffs */
  80         int old_link;          /* used by bf537_adjust_link */
  81         int old_speed;
  82         int old_duplex;
  83
  84         struct phy_device *phydev;
  85         struct mii_bus *mii_bus;
  86
  87 #if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
  88         struct cyclecounter cycles;
  89         struct timecounter clock;
  90         struct timecompare compare;
  91         struct hwtstamp_config stamp_cfg;
  92 #endif
  93 };
  94
  95 extern void bfin_get_ether_addr(char *addr);
  96
  97 #endif